Grinding Media including grinding ball&comma;grinding rod&comma;cylpeb&period;1&period;Raw material&colon;Steel & Iron2&period;Size&colon;20mm-150mm3&period;Production Method&colon;Cast&ForgedBrief Introduction of us &colon;Jinan Zhongwei is a leading producer of high chrome and forged Grinding Media Steel Balls supplied primarily to the platinum&comma; copper and gold mining industries&period;We are able to produce cast high chrome and forged grinding media in a range of sizes&comma; meaning we are able to supply customers with varying ore and mill types&period;